Defensive publication

ABSTRACT

IN A METHOD FOR PRODUCING ALPHA-ALUMINA MONOHYDRATE EXTRUDATES BY ADMIXING ACID, WATER, AND ALUMINA TO FORM AN EXTRUDABLE COMPOSITION, EXTRUDING THE COMPOSITION AND DRYING TO PRODUCE ALUMINA EXTRUDATES, THE IMPROVEMENT COMPRISING GRADUALLY MOISTENING THE EXTRUDATES, THEREBY IMPARTING WATER STABILITY TO THE EXTRUDATES.

DEFENSIVE PUBLICATION UN ITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969. 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED DECEMBER 3, 1974 1929,001 STABILIZED ALPHA-ALUMINA MONOHYDRATE EXTRUDATES William C. Ziegenhain, and Galen K. Madderra, Ponca City, Okla., assignors to Continental Oil Company, Ponca City, Okla.

Filed May 31, 1973, Ser. No. 364,773 Int. Cl. C0lf 7/02 U.S. Cl. 423-625 No Drawing. 10 Pages Specification In a method for producing alpha-alumina monohydrate extrudatcs by admixing acid, Water, and alumina to form an extrudable composition, extruding the composition and drying to produce alumina extrudates, the improvement comprising gradually moistening the extrudatcs,

thereby imparting water stability to the extrudatcs. 

